Improve Cutting Edge Instrument In Small Measure

• make sharp or sharper

• make crisp or more crisp and precise

• become sharp or sharper

• put (an image) into focus

• make (images or sounds) sharp or sharper

• raise the pitch of (musical notes)

• give a point to

• make (one's senses) more acute

• the blade of a knife

• of lesser importance or stature or rank

• lesser in scope or effect

• inferior in number or size or amount

• (of a scale or mode) having half steps between the second and third degrees, and (usually) the fifth and sixth degrees, and the seventh and eighth degrees

• not of legal age

• of lesser seriousness or danger

• of your secondary field of academic concentration or specialization

• a young person of either sex

• of the younger of two boys with the same family name

• warranting only temporal punishment

• relatively moderate, limited, or small

• have as one's secondary field of study